Including results for alien theory 2021.
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Inside Look At Area 51 *New Theories Revealed!* | Ancient Aliens | History
34:00
Inside Look At Area 51 *New Theories Revealed!* | Ancient Aliens | History
9.5M views1 year ago
YouTubeHISTORY
Alien Theories You Have to See to Believe | Ancient Aliens | Marathon | History
2:12:17
Alien Theories You Have to See to Believe | Ancient Aliens | Marathon | History
393.7K views10 months ago
YouTubeHISTORY
The Hybrid Theory: Human or Alien? | Ancient Aliens | History
32:32
The Hybrid Theory: Human or Alien? | Ancient Aliens | History
955.2K views5 months ago
YouTubeHISTORY
Outer Space’s Most Baffling Mysteries | Ancient Aliens | History
33:04
Outer Space’s Most Baffling Mysteries | Ancient Aliens | History
786.1K viewsMar 4, 2025
YouTubeHISTORY
Linda Moulton Howe's BIGGEST Theories Revealed | Ancient Aliens | History
23:20
Linda Moulton Howe's BIGGEST Theories Revealed | Ancient Aliens | History
296.6K views11 months ago
YouTubeHISTORY
The ancient alien theory sounded possible - until the missing evidence became impossible to ignore
31:07
The ancient alien theory sounded possible - until the missing evidence became impossible to ignore
1 week ago
MSNIsaac Arthur
The NEW Complete Alien Timeline (1979 - 2025)
1:18:32
The NEW Complete Alien Timeline (1979 - 2025)
112.4K views4 months ago
YouTubeNerdist
3:29
Mystery Object Moving Unusually Towards Earth! | Comet or An Alien Probe? | WION
176.5K views8 months ago
YouTubeWION
10:00
Aliens are already on Earth, new Harvard study speculates | LiveNOW from FOX
495.6K viewsJun 14, 2024
YouTubeLiveNOW from FOX
20:27
Humans From the Future | Ancient Aliens | History
1.7M views11 months ago
YouTubeHISTORY
1:16:35
How Close Are We To Finding Alien Life?
553.9K viewsMar 13, 2024
YouTubeWhat If
40:56
Big Alien Theory
100.8K views1 month ago
YouTubeIsaac Arthur
42:15
The Global Threat (Full Episode) | UFOs: Investigating the Unknown
6.7M viewsFeb 24, 2024
YouTubeNational Geographic
2:05:33
Uncovering the Truth: Giants, Alien Relics & The Human Experiment *Marathon* | Ancient Aliens
454.5K views8 months ago
YouTubeHISTORY
59:11
Ancient Aliens: TOP UFO MYSTERIES OF 2025 | Part 1
376.8K views4 months ago
YouTubeHISTORY
18:31
Ancient Aliens: Inside Area 51's UFO Secrets | History
5.8M viewsMay 9, 2024
YouTubeHISTORY
1:47
Investigation Alien | Official Trailer | Netflix
1.7M viewsOct 11, 2024
YouTubeNetflix
1:01:51
Exposing Government Secrets! | ALIEN AND UFO ENCOUNTERS: THE TOP 20
393.8K viewsApr 28, 2024
YouTubeFilmIsNow Movies
Un Exobiologiste analyse les aliens dans les films (Prometheus, La Guerre des Mondes, Predator...)
15:29
Find in video from 07:53Alien
Un Exobiologiste analyse les aliens dans les films (Prometheus, La G…
385.1K viewsAug 21, 2024
YouTubeAlloCiné
2:16
The Alien Perspective - Official Trailer (2025) Documentary
154.5K viewsDec 20, 2024
YouTubeIGN Movie Trailers
1:18:30
Brian Cox: Why black holes could hold the secret to time and space | Full Interview
4M views9 months ago
YouTubeBig Think
2:02
Alien: Romulus | Official Trailer
13.3M viewsJun 4, 2024
YouTube20th Century Studios
1:03
Alien: Romulus | Teaser Trailer
22.2M viewsMar 20, 2024
YouTube20th Century Studios
1:22:32
ALIEN STRAIN | Sci-Fi Action Thriller | Full Movie | FilmIsNow
14.5K viewsJul 5, 2024
YouTubeFilmIsNow Movies
44:25
Experts Reveal What Really Happened (Full Episode) | Area 51: The CIA's Secret
9.1M viewsJun 23, 2024
YouTubeNational Geographic
Ancient Aliens: Exposing Hidden Lunar Conspiracies | History
17:20
Find in video from 02:14Ancient Astronaut Theorists' Skepticism
Ancient Aliens: Exposing Hidden Lunar Conspiracies | History
568.3K viewsMay 2, 2024
YouTubeHISTORY
4:34
The Pentagon’s Mysterious UFO Program (S21) | Ancient Aliens | History
38K views11 months ago
YouTubeHISTORY
8:38
Alien: Earth — Theories That Actually Fit the Timeline
49.1K views7 months ago
YouTubeScreenRant
20:43
Top 20 Alien Conspiracy Theories
93.6K viewsNov 14, 2024
YouTubeWatchMojo.com
1:45:07
THE ALIENS | Sci-Fi Drama | Byron Yee, Stephanie Arcila | Full Movie | FilmIsNow
155.9K viewsJun 10, 2024
YouTubeFilmIsNow Movies
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